diff --git a/release/JGJS2026-dist.zip b/release/JGJS2026-dist.zip
new file mode 100644
index 0000000..444c6a1
Binary files /dev/null and b/release/JGJS2026-dist.zip differ
diff --git a/src/features/ht/components/Ht.vue b/src/features/ht/components/Ht.vue
index 4d7512d..ffbe398 100644
--- a/src/features/ht/components/Ht.vue
+++ b/src/features/ht/components/Ht.vue
@@ -54,6 +54,7 @@ import {
   SERVICE_KEY_PREFIX,
   type ContractSegmentPackage
 } from '@/lib/contractSegment'
+import { buildDefaultProjectScaleState } from '@/lib/projectWorkspace'
 import { getIndustryDisplayName, industryTypeList } from '@/sql'
 import { roundTo, sumNullableNumbers, toFiniteNumber } from '@/lib/decimal'
 import { formatThousands } from '@/lib/numberFormat'
@@ -517,15 +518,21 @@ const saveContracts = async () => {
 }
 
 const initializeContractScaleData = async (contractId: string) => {
-  const source = await kvStore.getItem<XmScaleState>(PROJECT_SCALE_KEY)
-  const payload: XmScaleState = {
-    detailRows: Array.isArray(source?.detailRows) ? cloneJson(source.detailRows) : [],
-    roughCalcEnabled: Boolean(source?.roughCalcEnabled),
-    totalAmount:
-      typeof source?.totalAmount === 'number' && Number.isFinite(source.totalAmount)
-        ? source.totalAmount
-        : null
-  }
+  const [source, projectInfo] = await Promise.all([
+    kvStore.getItem<XmScaleState>(PROJECT_SCALE_KEY),
+    kvStore.getItem<XmBaseInfoState>(PROJECT_INFO_KEY)
+  ])
+  const industry = typeof projectInfo?.projectIndustry === 'string' ? projectInfo.projectIndustry.trim() : ''
+  const payload: XmScaleState = industry
+    ? buildDefaultProjectScaleState(industry, source)
+    : {
+        detailRows: Array.isArray(source?.detailRows) ? cloneJson(source.detailRows) : [],
+        roughCalcEnabled: Boolean(source?.roughCalcEnabled),
+        totalAmount:
+          typeof source?.totalAmount === 'number' && Number.isFinite(source.totalAmount)
+            ? source.totalAmount
+            : null
+      }
   await kvStore.setItem(`${CONTRACT_KEY_PREFIX}${contractId}`, payload)
 }
 
diff --git a/src/features/ht/components/HtContractSummary.vue b/src/features/ht/components/HtContractSummary.vue
index 44cc5a1..8677012 100644
--- a/src/features/ht/components/HtContractSummary.vue
+++ b/src/features/ht/components/HtContractSummary.vue
@@ -250,7 +250,7 @@ const totalRow = computed<SummaryRow>(() => {
     landScale: sumField(row => row.landScale),
     workload: sumField(row => row.workload),
     hourly: sumField(row => row.hourly),
-    subtotal: sumField(row => row.subtotal),
+    subtotal: null,
     finalFee: sumField(row => row.finalFee)
   }
 })
@@ -328,7 +328,7 @@ const columnDefs: ColDef<SummaryRow>[] = [
     },
     colSpan: params => {
       if (!params.data) return 1
-      if (params.data.rowType === 'total') return 4
+      if (params.data.rowType === 'total') return 5
       if (params.data.rowType === 'additional' || params.data.rowType === 'reserve') return 5
       return 1
     },
diff --git a/src/features/pricing/components/InvestmentScalePricingPane.vue b/src/features/pricing/components/InvestmentScalePricingPane.vue
index 0f3ad7e..666d58d 100644
--- a/src/features/pricing/components/InvestmentScalePricingPane.vue
+++ b/src/features/pricing/components/InvestmentScalePricingPane.vue
@@ -63,7 +63,9 @@ import { buildProjectScopedSessionKey } from '@/lib/pricingPersistControl'
 import {
   buildContractScaleIdMap,
   buildContractScaleMap,
+  buildContractScaleProjectTotals,
   getContractScaleRowByMajor,
+  getContractScaleProjectTotalsByRow,
   makeProjectMajorKey,
   normalizeChangedScaleRowIds,
   parseProjectIndexFromPathKey,
@@ -328,8 +330,15 @@ const buildDefaultRows = (projectCountValue = getTargetProjectCount()): DetailRo
   })
 }
 
-const calcOnlyCostScaleAmountFromRows = (rows?: Array<{ amount?: unknown }>) =>
-  sumByNumber(rows || [], row => (typeof row?.amount === 'number' ? row.amount : null))
+const calcOnlyCostScaleAmountFromRows = (
+  rows?: Array<{ amount?: unknown; isGroupRow?: unknown }>,
+  totalAmount?: number | null
+) => {
+  if (typeof totalAmount === 'number' && Number.isFinite(totalAmount)) return totalAmount
+  const summaryRow = (rows || []).find(row => row?.isGroupRow === true)
+  if (typeof summaryRow?.amount === 'number' && Number.isFinite(summaryRow.amount)) return summaryRow.amount
+  return sumByNumber(rows || [], row => (typeof row?.amount === 'number' ? row.amount : null))
+}
 
 const getOnlyCostScaleMajorEntry = () => {
   const industryId = String(activeIndustryCode.value || '').trim()
@@ -405,10 +414,22 @@ const buildOnlyCostScaleRow = (
 
 const buildOnlyCostScaleRows = (
   rowsFromDb?: Array<Partial<DetailRow> & Pick<DetailRow, 'id'>>,
-  options?: { projectCount?: number; cloneFromProjectOne?: boolean }
+  options?: {
+    projectCount?: number
+    cloneFromProjectOne?: boolean
+    totalAmount?: number | null
+    preferSummaryAmountWhenSingleRow?: boolean
+  }
 ): DetailRow[] => {
   const targetProjectCount = normalizeProjectCount(options?.projectCount ?? getTargetProjectCount())
   const onlyCostMajorId = getOnlyCostScaleMajorEntry()?.id || ONLY_COST_SCALE_ROW_ID
+  const singleRowSummaryAmount =
+    options?.preferSummaryAmountWhenSingleRow
+      ? calcOnlyCostScaleAmountFromRows(
+          rowsFromDb as Array<{ amount?: unknown; isGroupRow?: unknown }>,
+          options.totalAmount
+        )
+      : null
   const dbValueMap = new Map<string, Partial<DetailRow> & Pick<DetailRow, 'id'>>()
   for (const row of rowsFromDb || []) {
     const projectIndex = resolveRowProjectIndex(row)
@@ -428,11 +449,11 @@ const buildOnlyCostScaleRows = (
       (options?.cloneFromProjectOne && projectIndex > 1 ? dbValueMap.get(firstProjectKey) : undefined)
     const fallbackAmount =
       options?.cloneFromProjectOne && projectIndex > 1 && fromDb == null
-        ? calcOnlyCostScaleAmountFromRows(rowsFromDb)
+        ? calcOnlyCostScaleAmountFromRows(rowsFromDb as Array<{ amount?: unknown; isGroupRow?: unknown }>, options.totalAmount)
         : null
     result.push(
       buildOnlyCostScaleRow(
-        typeof fromDb?.amount === 'number' ? fromDb.amount : fallbackAmount,
+        singleRowSummaryAmount ?? (typeof fromDb?.amount === 'number' ? fromDb.amount : fallbackAmount),
         projectIndex,
         fromDb
       )
@@ -608,22 +629,24 @@ const getBudgetFeeSplit = (
 ) => getScaleBudgetFeeSplitByRow(row, 'cost')
 
 const restoreAmountColumnDefaults = async () => {
-  const htData = await kvStore.getItem<{ detailRows: SourceRow[] }>(HT_DB_KEY.value)
+  const htData = await kvStore.getItem<{ detailRows: SourceRow[]; totalAmount?: number | null }>(HT_DB_KEY.value)
   const sourceRows = Array.isArray(htData?.detailRows) ? htData.detailRows : []
   const sourceRowMap = buildContractScaleMap(sourceRows)
   const sourceRowIdMap = buildContractScaleIdMap(sourceRows)
+  const projectTotals = buildContractScaleProjectTotals(sourceRows, htData?.totalAmount)
+  const useSummaryAmount = detailRows.value.length === 1 || isOnlyCostScaleService.value
   const onlyCostScaleFallbackAmount = isOnlyCostScaleService.value
-    ? calcOnlyCostScaleAmountFromRows(sourceRows as Array<{ amount?: unknown }>)
+    ? calcOnlyCostScaleAmountFromRows(sourceRows as Array<{ amount?: unknown; isGroupRow?: unknown }>, htData?.totalAmount)
     : null
   await restoreScaleColumnDefaults({
     gridApi: gridApi.value,
     rows: detailRows.value,
     getCurrentValue: row => row.amount,
     getNextValue: row => {
+      if (!row.hasCost) return null
+      if (useSummaryAmount) return getContractScaleProjectTotalsByRow(row, projectTotals).amount
       const sourceRow = getContractScaleRowByMajor(row, sourceRowMap, sourceRowIdMap)
-      return row.hasCost
-        ? (typeof sourceRow?.amount === 'number' ? sourceRow.amount : onlyCostScaleFallbackAmount)
-        : null
+      return typeof sourceRow?.amount === 'number' ? sourceRow.amount : onlyCostScaleFallbackAmount
     },
     isSameValue: isSameNullableNumber,
     applyValue: (row, nextValue) => {
@@ -812,24 +835,28 @@ const syncLinkedFieldsFromContractAndFactors = async () => {
 
 const syncLinkedScaleValuesFromContract = async (changedRowIds?: string[]) => {
   if (detailRows.value.length === 0) return
-  const htData = await kvStore.getItem<{ detailRows: SourceRow[] }>(HT_DB_KEY.value)
+  const htData = await kvStore.getItem<{ detailRows: SourceRow[]; totalAmount?: number | null }>(HT_DB_KEY.value)
   const sourceRows = Array.isArray(htData?.detailRows) ? htData.detailRows : []
   const sourceRowMap = buildContractScaleMap(sourceRows)
   const sourceRowIdMap = buildContractScaleIdMap(sourceRows)
+  const projectTotals = buildContractScaleProjectTotals(sourceRows, htData?.totalAmount)
+  const useSummaryAmount = detailRows.value.length === 1 || isOnlyCostScaleService.value
   const onlyCostScaleFallbackAmount = isOnlyCostScaleService.value
-    ? calcOnlyCostScaleAmountFromRows(sourceRows as Array<{ amount?: unknown }>)
+    ? calcOnlyCostScaleAmountFromRows(sourceRows as Array<{ amount?: unknown; isGroupRow?: unknown }>, htData?.totalAmount)
     : null
   const changedRowIdSet = changedRowIds?.length ? normalizeChangedScaleRowIds(changedRowIds) : null
 
   let changed = false
   for (const row of detailRows.value) {
-    if (changedRowIdSet) {
+    if (changedRowIdSet && !useSummaryAmount) {
       const rowMajorId = resolveRowMajorDictId(row)
       if (!changedRowIdSet.has(rowMajorId)) continue
     }
     const sourceRow = getContractScaleRowByMajor(row, sourceRowMap, sourceRowIdMap)
     const nextAmount = row.hasCost
-      ? (typeof sourceRow?.amount === 'number' ? sourceRow.amount : onlyCostScaleFallbackAmount)
+      ? (useSummaryAmount
+          ? getContractScaleProjectTotalsByRow(row, projectTotals).amount
+          : (typeof sourceRow?.amount === 'number' ? sourceRow.amount : onlyCostScaleFallbackAmount))
       : null
     if (isSameNullableNumber(row.amount, nextAmount)) continue
     row.amount = nextAmount
@@ -866,12 +893,21 @@ const buildRowsFromImportDefaultSource = async (
 ): Promise<DetailRow[]> => {
   // 与“使用默认数据”同源：先强制刷新系数，再按合同卡片默认带出。
   await loadFactorDefaults()
-  const htData = await kvStore.getItem<{ detailRows: SourceRow[] }>(HT_DB_KEY.value)
+  const htData = await kvStore.getItem<{ detailRows: SourceRow[]; totalAmount?: number | null }>(HT_DB_KEY.value)
   const hasContractRows = Array.isArray(htData?.detailRows) && htData.detailRows.length > 0
   if (isOnlyCostScaleService.value) {
     return hasContractRows
-      ? buildOnlyCostScaleRows(htData!.detailRows as any, { projectCount: targetProjectCount, cloneFromProjectOne: true })
-      : buildOnlyCostScaleRows(undefined, { projectCount: targetProjectCount })
+      ? buildOnlyCostScaleRows(htData!.detailRows as any, {
+          projectCount: targetProjectCount,
+          cloneFromProjectOne: true,
+          totalAmount: htData?.totalAmount ?? null,
+          preferSummaryAmountWhenSingleRow: true
+        })
+      : buildOnlyCostScaleRows(undefined, {
+          projectCount: targetProjectCount,
+          totalAmount: htData?.totalAmount ?? null,
+          preferSummaryAmountWhenSingleRow: true
+        })
   }
   return hasContractRows
     ? mergeWithDictRows(htData!.detailRows, {
diff --git a/src/features/pricing/components/LandScalePricingPane.vue b/src/features/pricing/components/LandScalePricingPane.vue
index 0612243..15e910b 100644
--- a/src/features/pricing/components/LandScalePricingPane.vue
+++ b/src/features/pricing/components/LandScalePricingPane.vue
@@ -63,7 +63,9 @@ import { buildProjectScopedSessionKey } from '@/lib/pricingPersistControl'
 import {
   buildContractScaleIdMap,
   buildContractScaleMap,
+  buildContractScaleProjectTotals,
   getContractScaleRowByMajor,
+  getContractScaleProjectTotalsByRow,
   makeProjectMajorKey,
   normalizeChangedScaleRowIds,
   parseProjectIndexFromPathKey,
@@ -487,17 +489,21 @@ const formatEditableFlexibleNumber = (params: any) =>
   })
 
 const restoreLandAreaColumnDefaults = async () => {
-  const htData = await kvStore.getItem<{ detailRows: SourceRow[] }>(HT_DB_KEY.value)
+  const htData = await kvStore.getItem<{ detailRows: SourceRow[]; totalAmount?: number | null }>(HT_DB_KEY.value)
   const sourceRows = Array.isArray(htData?.detailRows) ? htData.detailRows : []
   const sourceRowMap = buildContractScaleMap(sourceRows)
   const sourceRowIdMap = buildContractScaleIdMap(sourceRows)
+  const projectTotals = buildContractScaleProjectTotals(sourceRows, htData?.totalAmount)
+  const useSummaryLandArea = detailRows.value.length === 1
   await restoreScaleColumnDefaults({
     gridApi: gridApi.value,
     rows: detailRows.value,
     getCurrentValue: row => row.landArea,
     getNextValue: row => {
+      if (!row.hasArea) return null
+      if (useSummaryLandArea) return getContractScaleProjectTotalsByRow(row, projectTotals).landArea
       const sourceRow = getContractScaleRowByMajor(row, sourceRowMap, sourceRowIdMap)
-      return row.hasArea ? (typeof sourceRow?.landArea === 'number' ? sourceRow.landArea : null) : null
+      return typeof sourceRow?.landArea === 'number' ? sourceRow.landArea : null
     },
     isSameValue: isSameNullableNumber,
     applyValue: (row, nextValue) => {
@@ -690,20 +696,26 @@ const syncLinkedFieldsFromContractAndFactors = async () => {
 
 const syncLinkedScaleValuesFromContract = async (changedRowIds?: string[]) => {
   if (detailRows.value.length === 0) return
-  const htData = await kvStore.getItem<{ detailRows: SourceRow[] }>(HT_DB_KEY.value)
+  const htData = await kvStore.getItem<{ detailRows: SourceRow[]; totalAmount?: number | null }>(HT_DB_KEY.value)
   const sourceRows = Array.isArray(htData?.detailRows) ? htData.detailRows : []
   const sourceRowMap = buildContractScaleMap(sourceRows)
   const sourceRowIdMap = buildContractScaleIdMap(sourceRows)
+  const projectTotals = buildContractScaleProjectTotals(sourceRows, htData?.totalAmount)
+  const useSummaryLandArea = detailRows.value.length === 1
   const changedRowIdSet = changedRowIds?.length ? normalizeChangedScaleRowIds(changedRowIds) : null
 
   let changed = false
   for (const row of detailRows.value) {
-    if (changedRowIdSet) {
+    if (changedRowIdSet && !useSummaryLandArea) {
       const rowMajorId = resolveRowMajorDictId(row)
       if (!changedRowIdSet.has(rowMajorId)) continue
     }
     const sourceRow = getContractScaleRowByMajor(row, sourceRowMap, sourceRowIdMap)
-    const nextLandArea = row.hasArea ? (typeof sourceRow?.landArea === 'number' ? sourceRow.landArea : null) : null
+    const nextLandArea = row.hasArea
+      ? (useSummaryLandArea
+          ? getContractScaleProjectTotalsByRow(row, projectTotals).landArea
+          : (typeof sourceRow?.landArea === 'number' ? sourceRow.landArea : null))
+      : null
     if (isSameNullableNumber(row.landArea, nextLandArea)) continue
     row.landArea = nextLandArea
     changed = true
diff --git a/src/features/pricing/components/ScaleFormulaReadonlyPane.vue b/src/features/pricing/components/ScaleFormulaReadonlyPane.vue
index abd30fe..bd64301 100644
--- a/src/features/pricing/components/ScaleFormulaReadonlyPane.vue
+++ b/src/features/pricing/components/ScaleFormulaReadonlyPane.vue
@@ -77,11 +77,21 @@ const numberFormatter = (params: { value?: unknown }) =>
     ? formatThousandsFlexible(params.value, 3)
     : ''
 
+const scaleValueColumnField = computed<keyof ScaleDetailRow>(() =>
+  isInvestmentFormula.value ? 'amount' : 'landArea'
+)
+
+const scaleValueColumnHeader = computed(() =>
+  isInvestmentFormula.value
+    ? t('pricingScale.columns.investAmount')
+    : t('pricingScale.columns.landArea')
+)
+
 const columnDefs = computed<ColDef<ScaleDetailRow>[]>(() =>
   withReadonlyAutoHeight<ScaleDetailRow>([
     {
-      headerName: t('zxFwView.formulaColumns.amount'),
-      field: 'budgetFee',
+      headerName: scaleValueColumnHeader.value,
+      field: scaleValueColumnField.value,
       minWidth: 130,
       flex: 1,
       headerClass: 'ag-right-aligned-header',
@@ -92,7 +102,7 @@ const columnDefs = computed<ColDef<ScaleDetailRow>[]>(() =>
     },
     {
       headerName: t('pricingScale.columns.basicWork'),
-      field: 'budgetFeeBasic',
+      field: 'benchmarkBudgetBasic',
       minWidth: 130,
       flex: 1,
       headerClass: 'ag-right-aligned-header',
@@ -109,7 +119,7 @@ const columnDefs = computed<ColDef<ScaleDetailRow>[]>(() =>
     },
     {
       headerName: t('pricingScale.columns.optionalWork'),
-      field: 'budgetFeeOptional',
+      field: 'benchmarkBudgetOptional',
       minWidth: 130,
       flex: 1,
       headerClass: 'ag-right-aligned-header',
diff --git a/src/features/tab/types.ts b/src/features/tab/types.ts
index 65d367f..51f61ef 100644
--- a/src/features/tab/types.ts
+++ b/src/features/tab/types.ts
@@ -141,7 +141,6 @@ export interface FactorRowLike {
 }
 
 export interface ExportScaleRow {
-  majorid: number
   major: number
   cost: number | null
   area: number | null
diff --git a/src/features/workbench/components/HomeEntryView.vue b/src/features/workbench/components/HomeEntryView.vue
index 05aa817..e996629 100644
--- a/src/features/workbench/components/HomeEntryView.vue
+++ b/src/features/workbench/components/HomeEntryView.vue
@@ -14,7 +14,7 @@ import {
   X
 } from 'lucide-vue-next'
 import { getIndustryDisplayName, industryTypeList } from '@/sql'
-import { initializeProjectFactorStates } from '@/lib/projectWorkspace'
+import { initializeProjectFactorStates, initializeProjectScaleState } from '@/lib/projectWorkspace'
 import {
   SelectContent,
   SelectIcon,
@@ -76,6 +76,7 @@ interface ProjectInfoState {
 const PROJECT_INFO_KEY = 'xm-base-info-v1'
 const PROJECT_CONSULT_CATEGORY_FACTOR_KEY = 'xm-consult-category-factor-v1'
 const PROJECT_MAJOR_FACTOR_KEY = 'xm-major-factor-v1'
+const PROJECT_SCALE_KEY = 'xm-info-v3'
 const getActiveProjectId = () => readCurrentProjectId()
 
 const tabStore = useTabStore()
@@ -277,6 +278,7 @@ const confirmProjectCalc = async () => {
       PROJECT_CONSULT_CATEGORY_FACTOR_KEY,
       PROJECT_MAJOR_FACTOR_KEY
     )
+    await initializeProjectScaleState(kvAdapter, industry, PROJECT_SCALE_KEY)
     writeWorkspaceMode('project')
     window.location.href = buildProjectUrl(project.id, { forceHome: false, newProject: false })
   } finally {
diff --git a/src/features/workbench/components/QuickCalcWorkbenchView.vue b/src/features/workbench/components/QuickCalcWorkbenchView.vue
index 8b2eb8c..e481ed1 100644
--- a/src/features/workbench/components/QuickCalcWorkbenchView.vue
+++ b/src/features/workbench/components/QuickCalcWorkbenchView.vue
@@ -443,45 +443,45 @@ watch(canUseLandScale, enabled => {
     
 
         <div class="quick-calc-toolbar">
-          <label class="quick-calc-toolbar__field quick-calc-toolbar__field--cards">
-            <span class="quick-calc-field__label">{{ t('quickCalc.fields.industry') }}</span>
-            <div class="quick-calc-industry-grid" role="radiogroup" :aria-label="t('quickCalc.fields.industry')">
-              <label
-                v-for="item in industryTypeList"
-                :key="`quick-workbench-${item.id}`"
-                class="quick-calc-industry-card"
-                :class="{ 'is-selected': isIndustrySelected(item.id) }"
-                :aria-checked="isIndustrySelected(item.id)"
-                role="radio"
-                tabindex="0"
-                @click.prevent="handleIndustrySelect(item.id)"
-                @keydown.enter.prevent="handleIndustrySelect(item.id)"
-                @keydown.space.prevent="handleIndustrySelect(item.id)"
-              >
-                <input
-                  :checked="isIndustrySelected(item.id)"
-                  type="radio"
-                  name="quick-calc-industry-choice"
-                  class="quick-calc-option__input"
-                  tabindex="-1"
-                >
-                <span
-                  class="quick-calc-industry-card__icon"
+          <section class="quick-calc-form-section quick-calc-toolbar__section">
+            <div class="quick-calc-field quick-calc-field--wide">
+              <span class="quick-calc-field__label">{{ t('quickCalc.fields.industry') }}</span>
+              <div class="quick-calc-industry-grid" role="radiogroup" :aria-label="t('quickCalc.fields.industry')">
+                <label
+                  v-for="item in industryTypeList"
+                  :key="`quick-workbench-${item.id}`"
+                  class="quick-calc-industry-card"
                   :class="{ 'is-selected': isIndustrySelected(item.id) }"
+                  :aria-checked="isIndustrySelected(item.id)"
+                  role="radio"
+                  tabindex="0"
+                  @click.prevent="handleIndustrySelect(item.id)"
+                  @keydown.enter.prevent="handleIndustrySelect(item.id)"
+                  @keydown.space.prevent="handleIndustrySelect(item.id)"
                 >
-                  <CircleDot v-if="isIndustrySelected(item.id)" class="h-3.5 w-3.5" />
-                  <Circle v-else class="h-3.5 w-3.5" />
-                </span>
-                <span class="quick-calc-industry-card__text">
-                  {{ getIndustryDisplayName(item.id, locale) }}
-                </span>
-              </label>
+                  <input
+                    :checked="isIndustrySelected(item.id)"
+                    type="radio"
+                    name="quick-calc-industry-choice"
+                    class="quick-calc-option__input"
+                    tabindex="-1"
+                  >
+                  <span
+                    class="quick-calc-industry-card__icon"
+                    :class="{ 'is-selected': isIndustrySelected(item.id) }"
+                  >
+                    <CircleDot v-if="isIndustrySelected(item.id)" class="h-3.5 w-3.5" />
+                    <Circle v-else class="h-3.5 w-3.5" />
+                  </span>
+                  <span class="quick-calc-industry-card__text">
+                    {{ getIndustryDisplayName(item.id, locale) }}
+                  </span>
+                </label>
+              </div>
             </div>
-          </label>
 
-          <span class="quick-calc-toolbar__meta">
-            {{ industrySaving ? t('quickCalc.saving') : industryLabel }}
-          </span>
+           
+          </section>
         </div>
 
         <div v-if="!hasSelectedIndustry" class="quick-calc-empty-state">
@@ -724,25 +724,18 @@ watch(canUseLandScale, enabled => {
 
 .quick-calc-toolbar {
   display: flex;
-  align-items: end;
-  justify-content: space-between;
+  align-items: stretch;
   gap: 12px;
   padding: 12px;
   border-bottom: 1px solid var(--qc-border);
   background: color-mix(in srgb, var(--qc-surface-muted) 72%, transparent);
 }
 
-.quick-calc-toolbar__field {
-  display: grid;
-  gap: 8px;
+.quick-calc-toolbar__section {
   min-width: min(280px, 100%);
   flex: 1;
 }
 
-.quick-calc-toolbar__field--cards {
-  align-content: start;
-}
-
 .quick-calc-industry-grid {
   display: grid;
   grid-template-columns: repeat(auto-fit, minmax(136px, 1fr));
@@ -805,10 +798,8 @@ watch(canUseLandScale, enabled => {
 }
 
 .quick-calc-toolbar__meta {
-  flex-shrink: 0;
-  font-size: 12px;
+  justify-content: flex-end;
   color: var(--qc-muted);
-  text-align: right;
 }
 
 .quick-calc-empty-state {
@@ -1383,7 +1374,7 @@ watch(canUseLandScale, enabled => {
   }
 
   .quick-calc-toolbar__meta {
-    text-align: left;
+    justify-content: flex-start;
   }
 
   .quick-calc-layout {
diff --git a/src/layout/tab.vue b/src/layout/tab.vue
index 0914298..ae21013 100644
--- a/src/layout/tab.vue
+++ b/src/layout/tab.vue
@@ -149,7 +149,7 @@ import {
   getServiceDictItemById,
   industryTypeList
 } from '@/sql'
-import { initializeProjectFactorStates } from '@/lib/projectWorkspace'
+import { initializeProjectFactorStates, initializeProjectScaleState } from '@/lib/projectWorkspace'
 import { createProjectKvAdapter } from '@/lib/projectKvStore'
 import { I18N_LOCALE_KEY, type AppLocale } from '@/i18n'
 const { t, locale } = useI18n()
@@ -539,6 +539,7 @@ const createProjectAndOpen = async () => {
       CONSULT_CATEGORY_FACTOR_DB_KEY,
       MAJOR_FACTOR_DB_KEY
     )
+    await initializeProjectScaleState(kvAdapter, industry, LEGACY_PROJECT_DB_KEY)
     void refreshProjectList()
     const href = buildProjectUrl(project.id)
     window.open(href, '_blank', 'noopener')
@@ -992,6 +993,30 @@ const loadFactorRowsState = async (storageKey: string) => {
   }
 }
 
+const resolveExportFactorRows = (
+  primary: Awaited<ReturnType<typeof loadFactorRowsState>>,
+  fallback?: Awaited<ReturnType<typeof loadFactorRowsState>>
+) => {
+  const primaryRows = Array.isArray(primary?.resolved?.detailRows) ? primary.resolved.detailRows : []
+  if (primaryRows.length > 0) return primaryRows
+  return Array.isArray(fallback?.resolved?.detailRows) ? fallback.resolved.detailRows : []
+}
+
+const resolveExportScaleState = <
+  TState extends { detailRows?: unknown[]; roughCalcEnabled?: unknown; totalAmount?: unknown } | null | undefined
+>(
+  primary: TState,
+  fallback?: TState
+) => {
+  const primaryRows = Array.isArray(primary?.detailRows) ? primary.detailRows : []
+  const primaryHasState =
+    primaryRows.length > 0
+    || primary?.roughCalcEnabled === true
+    || (typeof primary?.totalAmount === 'number' && Number.isFinite(primary.totalAmount))
+  if (primaryHasState) return primary
+  return fallback ?? primary ?? null
+}
+
 const createRichTextCode = (...parts: string[]): unknown => ({
   richText: parts
     .map(item => String(item || '').trim())
@@ -1171,8 +1196,8 @@ const buildExportReportPayload = async (): Promise<ExportReportPayload> => {
   const projectScaleCost = toFiniteNumber(projectScaleSource.totalAmount) ?? sumNumbers(projectScale.map(item => item.cost))
 
 
-  const projectServiceCoes = buildProjectServiceCoes(consultCategoryFactorState.resolved?.detailRows)
-  const projectMajorCoes = buildProjectMajorCoes(majorFactorState.resolved?.detailRows)
+  const projectServiceCoes = buildProjectServiceCoes(resolveExportFactorRows(consultCategoryFactorState))
+  const projectMajorCoes = buildProjectMajorCoes(resolveExportFactorRows(majorFactorState))
   const projectName = isNonEmptyString(projectInfo.projectName)
     ? projectInfo.projectName.trim()
     : t('tab.messages.defaultProjectName')
@@ -1369,10 +1394,15 @@ const buildExportReportPayload = async (): Promise<ExportReportPayload> => {
     const addtionalFee = toMoney(addtional ? addtional.fee : 0)
     const reserveFee = toMoney(reserve ? reserve.fee : 0)
     const contractFee = toMoney(addNumbers(serviceFee, addtionalFee, reserveFee))
-    const contractScale = htInfoRaw?.roughCalcEnabled ? [] : toExportScaleRows(htInfoRaw?.detailRows)
+    const contractScaleState = resolveExportScaleState(htInfoRaw, projectScaleSource)
+    const contractScale = contractScaleState?.roughCalcEnabled ? [] : toExportScaleRows(contractScaleState?.detailRows)
 
-    const contractServiceCoesRaw = buildProjectServiceCoes(htConsultCategoryFactorState.resolved?.detailRows)
-    const contractMajorCoesRaw = buildProjectMajorCoes(htMajorFactorState.resolved?.detailRows)
+    const contractServiceCoesRaw = buildProjectServiceCoes(
+      resolveExportFactorRows(htConsultCategoryFactorState, consultCategoryFactorState)
+    )
+    const contractMajorCoesRaw = buildProjectMajorCoes(
+      resolveExportFactorRows(htMajorFactorState, majorFactorState)
+    )
     console.log('[export][contract factor rows]', {
       contractId,
       consultFactorPinia: htConsultCategoryFactorState.piniaData,
diff --git a/src/lib/agGridResetHeader.ts b/src/lib/agGridResetHeader.ts
index 463fc4b..ea97e3b 100644
--- a/src/lib/agGridResetHeader.ts
+++ b/src/lib/agGridResetHeader.ts
@@ -37,7 +37,6 @@ export class AgGridResetHeader implements IHeaderComp {
     eButton.type = 'button'
     eButton.textContent = '↻'
     const fallbackResetTitle = i18n.global.t('agGrid.resetDefault')
-    eButton.title = params.resetTitle || fallbackResetTitle
     eButton.setAttribute('aria-label', params.resetTitle || fallbackResetTitle)
     eButton.style.display = 'inline-flex'
     eButton.style.alignItems = 'center'
@@ -70,7 +69,6 @@ export class AgGridResetHeader implements IHeaderComp {
     this.params = params
     this.eLabel.textContent = params.displayName || params.column?.getColDef().headerName || ''
     const fallbackResetTitle = i18n.global.t('agGrid.resetDefault')
-    this.eButton.title = params.resetTitle || fallbackResetTitle
     this.eButton.setAttribute('aria-label', params.resetTitle || fallbackResetTitle)
     this.eButton.style.visibility = params.onReset ? 'visible' : 'hidden'
     return true
diff --git a/src/lib/pricingMethodTotals.ts b/src/lib/pricingMethodTotals.ts
index 108c7dd..88c7b16 100644
--- a/src/lib/pricingMethodTotals.ts
+++ b/src/lib/pricingMethodTotals.ts
@@ -13,6 +13,7 @@ import { useKvStore } from '@/pinia/kv'
 
 interface StoredDetailRowsState<T = any> {
   detailRows?: T[]
+  totalAmount?: number | null
 }
 
 interface StoredFactorState {
@@ -36,6 +37,16 @@ const sumByNumberNullable = <T>(list: T[], pick: (item: T) => MaybeNumber): numb
   return hasValid ? total : null
 }
 
+const getOnlyCostScaleSummaryAmount = (
+  rows?: Array<{ amount?: unknown; isGroupRow?: unknown }>,
+  totalAmount?: unknown
+) => {
+  if (typeof totalAmount === 'number' && Number.isFinite(totalAmount)) return totalAmount
+  const summaryRow = (rows || []).find(row => row?.isGroupRow === true)
+  if (typeof summaryRow?.amount === 'number' && Number.isFinite(summaryRow.amount)) return summaryRow.amount
+  return null
+}
+
 interface ScaleRow {
   id: string
   amount: number | null
@@ -388,9 +399,11 @@ const getOnlyCostScaleBudgetFee = (
   rowsFromDb: Array<Record<string, unknown>> | undefined,
   consultCategoryFactorMap?: Map<string, number | null>,
   majorFactorMap?: Map<string, number | null>,
-  industryId?: string | null
+  industryId?: string | null,
+  totalAmount?: number | null
 ) => {
   const industryMajorEntry = getIndustryMajorEntryByIndustryId(industryId)
+  const rawRows = rowsFromDb || []
   const sourceRows = stripGroupScaleRows(rowsFromDb)
   const defaultConsultCategoryFactor =
     consultCategoryFactorMap?.get(String(serviceId)) ?? getDefaultConsultCategoryFactor(serviceId)
@@ -421,12 +434,10 @@ const getOnlyCostScaleBudgetFee = (
     })
   }
 
-  const totalAmount = sumByNumberNullable(sourceRows, row =>
-    typeof row?.amount === 'number' && Number.isFinite(row.amount) ? row.amount : null
-  )
-  if (totalAmount == null) return null
+  const resolvedTotalAmount = getOnlyCostScaleSummaryAmount(rawRows as Array<{ amount?: unknown; isGroupRow?: unknown }>, totalAmount)
+  if (resolvedTotalAmount == null) return null
   const onlyRow =
-    sourceRows.find(row => String(row?.id || '') === ONLY_COST_SCALE_ROW_ID) ||
+    rawRows.find(row => String(row?.id || '') === ONLY_COST_SCALE_ROW_ID) ||
     sourceRows.find(row => hasOwn(row, 'consultCategoryFactor') || hasOwn(row, 'majorFactor')) ||
     sourceRows[0]
   const consultCategoryFactor = getRowNumberOrFallback(onlyRow, 'consultCategoryFactor', defaultConsultCategoryFactor)
@@ -434,7 +445,7 @@ const getOnlyCostScaleBudgetFee = (
   const workStageFactor = getRowNumberOrFallback(onlyRow, 'workStageFactor', 1)
   const workRatio = getRowNumberOrFallback(onlyRow, 'workRatio', 100)
   return getScaleBudgetFeeByRow({
-    amount: totalAmount,
+    amount: resolvedTotalAmount,
     benchmarkBudgetBasicChecked: typeof onlyRow?.benchmarkBudgetBasicChecked === 'boolean' ? onlyRow.benchmarkBudgetBasicChecked : true,
     benchmarkBudgetOptionalChecked: typeof onlyRow?.benchmarkBudgetOptionalChecked === 'boolean' ? onlyRow.benchmarkBudgetOptionalChecked : true,
     majorFactor,
@@ -449,16 +460,16 @@ const buildOnlyCostScaleDetailRows = (
   rowsFromDb: Array<Record<string, unknown>> | undefined,
   consultCategoryFactorMap?: Map<string, number | null>,
   majorFactorMap?: Map<string, number | null>,
-  industryId?: string | null
+  industryId?: string | null,
+  totalAmount?: number | null
 ) => {
+  const rawRows = rowsFromDb || []
   const sourceRows = stripGroupScaleRows(rowsFromDb)
-  const totalAmount = sumByNumberNullable(sourceRows, row =>
-    typeof row?.amount === 'number' && Number.isFinite(row.amount) ? row.amount : null
-  )
+  const resolvedTotalAmount = getOnlyCostScaleSummaryAmount(rawRows as Array<{ amount?: unknown; isGroupRow?: unknown }>, totalAmount)
   const industryMajorEntry = getIndustryMajorEntryByIndustryId(industryId)
   const onlyCostRowId = industryMajorEntry?.id || ONLY_COST_SCALE_ROW_ID
   const onlyRow =
-    sourceRows.find(row => String(row?.id || '') === ONLY_COST_SCALE_ROW_ID) ||
+    rawRows.find(row => String(row?.id || '') === ONLY_COST_SCALE_ROW_ID) ||
     sourceRows.find(row => String(row?.id || '') === onlyCostRowId)
   const consultCategoryFactor = getRowNumberOrFallback(
     onlyRow,
@@ -478,7 +489,7 @@ const buildOnlyCostScaleDetailRows = (
   return [
     {
       id: onlyCostRowId,
-      amount: totalAmount,
+      amount: resolvedTotalAmount,
       landArea: null,
       consultCategoryFactor,
       majorFactor,
@@ -735,7 +746,8 @@ const buildDefaultPricingMethodDetailRows = (
         context.htData?.detailRows as Array<Record<string, unknown>> | undefined,
         context.consultCategoryFactorMap,
         context.majorFactorMap,
-        context.industryId
+        context.industryId,
+        context.htData?.totalAmount ?? null
       )
     : scaleRows.filter(row => {
         if (!isCostMajorById(row.id)) return false
@@ -846,7 +858,8 @@ export const getPricingMethodTotalsForService = async (params: {
           (htData?.detailRows as Array<Record<string, unknown>> | undefined),
         consultCategoryFactorMap,
         majorFactorMap,
-        industryId
+        industryId,
+        htData?.totalAmount ?? null
       )
       : (() => {
         const investRows = scopedInvestRows || resolveScaleRows(
diff --git a/src/lib/pricingScaleLink.ts b/src/lib/pricingScaleLink.ts
index 1f08c0a..76a0791 100644
--- a/src/lib/pricingScaleLink.ts
+++ b/src/lib/pricingScaleLink.ts
@@ -9,6 +9,12 @@ type ScaleLinkRow = {
   path?: unknown
 }
 
+type ScaleValueLinkRow = ScaleLinkRow & {
+  amount?: unknown
+  landArea?: unknown
+  isGroupRow?: unknown
+}
+
 const normalizeProjectCount = (value: unknown) => {
   const parsed = Number(value)
   if (!Number.isFinite(parsed)) return 1
@@ -84,6 +90,55 @@ export const buildContractScaleIdMap = <TRow extends ScaleLinkRow>(rows: TRow[]
   return map
 }
 
+export const buildContractScaleProjectTotals = <TRow extends ScaleValueLinkRow>(
+  rows: TRow[] | undefined,
+  totalAmount?: unknown
+) => {
+  const map = new Map<number, { amount: number | null; landArea: number | null }>()
+
+  const normalizedTotalAmount =
+    typeof totalAmount === 'number' && Number.isFinite(totalAmount)
+      ? totalAmount
+      : null
+
+  if (normalizedTotalAmount != null) {
+    map.set(1, {
+      amount: normalizedTotalAmount,
+      landArea: null
+    })
+  }
+
+  for (const row of rows || []) {
+    if (row?.isGroupRow !== true) continue
+    const projectIndex = resolveScaleRowProjectIndex(row)
+    const current = map.get(projectIndex) || { amount: null, landArea: null }
+    const nextAmount =
+      current.amount != null
+        ? current.amount
+        : (typeof row?.amount === 'number' && Number.isFinite(row.amount) ? row.amount : null)
+    const nextLandArea =
+      current.landArea != null
+        ? current.landArea
+        : (typeof row?.landArea === 'number' && Number.isFinite(row.landArea) ? row.landArea : null)
+    map.set(projectIndex, {
+      amount: nextAmount,
+      landArea: nextLandArea
+    })
+  }
+
+  return map
+}
+
+export const getContractScaleProjectTotalsByRow = (
+  row: ScaleLinkRow | undefined,
+  totalsMap: Map<number, { amount: number | null; landArea: number | null }>
+) => {
+  const projectIndex = resolveScaleRowProjectIndex(row)
+  return totalsMap.get(projectIndex)
+    || (projectIndex > 1 ? totalsMap.get(1) : undefined)
+    || { amount: null, landArea: null }
+}
+
 export const getContractScaleRowByMajor = <TRow extends ScaleLinkRow>(
   row: ScaleLinkRow,
   map: Map<string, TRow>,
diff --git a/src/lib/projectWorkspace.ts b/src/lib/projectWorkspace.ts
index dd2d2ab..99bf583 100644
--- a/src/lib/projectWorkspace.ts
+++ b/src/lib/projectWorkspace.ts
@@ -15,6 +15,8 @@ type DictItemLite = {
   name?: string
   defCoe?: number | null
   notshowByzxflxs?: boolean
+  hasCost?: boolean | null
+  hasArea?: boolean | null
 }
 
 type FactorPersistRow = {
@@ -31,6 +33,48 @@ type FactorPersistState = {
   detailRows: FactorPersistRow[]
 }
 
+type ScalePersistRow = {
+  id: string
+  groupCode: string
+  groupName: string
+  majorCode: string
+  majorName: string
+  hasCost: boolean
+  hasArea: boolean
+  amount: number | null
+  landArea: number | null
+  path: string[]
+  hide?: boolean
+  isGroupRow?: boolean
+}
+
+type ScalePersistState = {
+  detailRows: ScalePersistRow[]
+  totalAmount: number | null
+  roughCalcEnabled: boolean
+}
+
+type ScalePersistStateSource = {
+  detailRows?: unknown[]
+  totalAmount?: unknown
+  roughCalcEnabled?: unknown
+}
+
+type ScaleDictLeaf = {
+  id: string
+  code: string
+  name: string
+  hasCost: boolean
+  hasArea: boolean
+}
+
+type ScaleDictGroup = {
+  id: string
+  code: string
+  name: string
+  children: ScaleDictLeaf[]
+}
+
 const buildCodePath = (code: string, selfId: string, codeIdMap: Map<string, string>) => {
   const parts = code.split('-').filter(Boolean)
   if (!parts.length) return [selfId]
@@ -80,6 +124,151 @@ const buildFactorRowsFromEntries = (entries: Array<{ id: string; item: DictItemL
     .filter((item): item is FactorPersistRow => Boolean(item))
 }
 
+const buildScaleGroupsFromEntries = (entries: Array<{ id: string; item: DictItemLite }>) => {
+  const groupMap = new Map<string, ScaleDictGroup>()
+  const groupOrder: string[] = []
+  const codeLookup = new Map(entries.map(entry => [String(entry.item?.code || '').trim(), entry]))
+
+  for (const entry of entries) {
+    const code = String(entry.item?.code || '').trim()
+    const name = String(entry.item?.name || '').trim()
+    if (!code || !name) continue
+
+    if (!code.includes('-')) {
+      if (!groupMap.has(code)) groupOrder.push(code)
+      groupMap.set(code, {
+        id: entry.id,
+        code,
+        name,
+        children: []
+      })
+      continue
+    }
+
+    const parentCode = code.split('-')[0]
+    if (!groupMap.has(parentCode)) {
+      const parent = codeLookup.get(parentCode)
+      if (!groupOrder.includes(parentCode)) groupOrder.push(parentCode)
+      groupMap.set(parentCode, {
+        id: parent?.id || `group-${parentCode}`,
+        code: parentCode,
+        name: String(parent?.item?.name || parentCode).trim(),
+        children: []
+      })
+    }
+
+    groupMap.get(parentCode)?.children.push({
+      id: entry.id,
+      code,
+      name,
+      hasCost: entry.item?.hasCost !== false,
+      hasArea: entry.item?.hasArea !== false
+    })
+  }
+
+  return groupOrder
+    .map(code => groupMap.get(code))
+    .filter((item): item is ScaleDictGroup => Boolean(item))
+}
+
+const buildScaleLeafRows = (groups: ScaleDictGroup[]): ScalePersistRow[] => (
+  groups.flatMap(group =>
+    group.children.map(child => ({
+      id: child.id,
+      groupCode: group.code,
+      groupName: group.name,
+      majorCode: child.code,
+      majorName: child.name,
+      hasCost: child.hasCost,
+      hasArea: child.hasArea,
+      amount: null,
+      landArea: null,
+      path: [`${group.code} ${group.name}`, `${child.code} ${child.name}`]
+    }))
+  )
+)
+
+const mergeScaleLeafRows = (defaultRows: ScalePersistRow[], rowsFromDb: ScalePersistRow[] | undefined) => {
+  const dbValueMap = new Map<string, ScalePersistRow>()
+  for (const row of rowsFromDb || []) {
+    if (!row || row.isGroupRow === true) continue
+    dbValueMap.set(String(row.id || ''), row)
+  }
+
+  return defaultRows.map(row => {
+    const fromDb = dbValueMap.get(row.id)
+    if (!fromDb) return row
+    return {
+      ...row,
+      hide: fromDb.hide,
+      amount: row.hasCost && typeof fromDb.amount === 'number' && Number.isFinite(fromDb.amount) ? fromDb.amount : null,
+      landArea: row.hasArea && typeof fromDb.landArea === 'number' && Number.isFinite(fromDb.landArea) ? fromDb.landArea : null
+    }
+  })
+}
+
+const buildScaleGroupRows = (groups: ScaleDictGroup[], rows: ScalePersistRow[]): ScalePersistRow[] => {
+  const rowById = new Map(rows.map(row => [String(row.id || ''), row] as const))
+
+  return groups.map(group => {
+    let amountTotal = 0
+    let hasAmount = false
+    let landAreaTotal = 0
+    let hasLandArea = false
+
+    for (const child of group.children) {
+      const leaf = rowById.get(String(child.id || ''))
+      const amount = leaf?.amount
+      if (typeof amount === 'number' && Number.isFinite(amount)) {
+        amountTotal += amount
+        hasAmount = true
+      }
+      const landArea = leaf?.landArea
+      if (typeof landArea === 'number' && Number.isFinite(landArea)) {
+        landAreaTotal += landArea
+        hasLandArea = true
+      }
+    }
+
+    return {
+      id: group.id,
+      groupCode: group.code,
+      groupName: group.name,
+      majorCode: group.code,
+      majorName: group.name,
+      hasCost: true,
+      hasArea: true,
+      amount: hasAmount ? amountTotal : null,
+      landArea: hasLandArea ? landAreaTotal : null,
+      path: [`${group.code} ${group.name}`],
+      hide: false,
+      isGroupRow: true
+    }
+  })
+}
+
+export const buildDefaultProjectScaleState = (industry: string, source?: ScalePersistStateSource | null): ScalePersistState => {
+  const majorEntries = getMajorDictEntries()
+    .map(({ id, item }) => ({ id, item: item as DictItemLite }))
+    .filter(({ id, item }) => item.notshowByzxflxs !== true && isMajorIdInIndustryScope(id, industry))
+
+  const groups = buildScaleGroupsFromEntries(majorEntries)
+  const defaultLeafRows = buildScaleLeafRows(groups)
+  const detailRows = mergeScaleLeafRows(
+    defaultLeafRows,
+    Array.isArray(source?.detailRows) ? source.detailRows as ScalePersistRow[] : undefined
+  )
+
+  return {
+    detailRows: [...detailRows, ...buildScaleGroupRows(groups, detailRows)],
+    totalAmount:
+      typeof source?.totalAmount === 'number' && Number.isFinite(source.totalAmount)
+        ? source.totalAmount
+        : null,
+    roughCalcEnabled: source?.roughCalcEnabled === true
+  }
+}
+
 export const initializeProjectFactorStates = async (
   kvStore: KvStoreLike,
   industry: string,
@@ -110,3 +299,11 @@ export const initializeProjectFactorStates = async (
     kvStore.setItem(majorFactorKey, majorPayload)
   ])
 }
+
+export const initializeProjectScaleState = async (
+  kvStore: KvStoreLike,
+  industry: string,
+  projectScaleKey: string
+) => {
+  await kvStore.setItem(projectScaleKey, buildDefaultProjectScaleState(industry))
+}
diff --git a/src/lib/reportExportBuilders.ts b/src/lib/reportExportBuilders.ts
index 24df052..a433039 100644
--- a/src/lib/reportExportBuilders.ts
+++ b/src/lib/reportExportBuilders.ts
@@ -6,6 +6,9 @@ export { toFiniteNumber, toFiniteNumberOrZero }
 interface ScaleMethodRowLike {
   id: string
   majorDictId?: unknown
+  hasCost?: unknown
+  hasArea?: unknown
+  isGroupRow?: unknown
   amount: number | null
   landArea: number | null
   benchmarkBudgetBasicChecked?: unknown
@@ -33,12 +36,16 @@ interface WorkContentRowLike {
 
 interface FactorRowLike {
   id: string
+  standardFactor?: unknown
   budgetValue?: unknown
   remark?: unknown
 }
 
 interface ScaleRowLike {
   id: string
+  hasCost?: unknown
+  hasArea?: unknown
+  isGroupRow?: unknown
   amount: number | null
   landArea: number | null
 }
@@ -89,7 +96,6 @@ interface QuantityMethodRowLike {
 }
 
 interface ExportScaleRowLike {
-  majorid: number
   major: number
   cost: number | null
   area: number | null
@@ -249,6 +255,7 @@ const dedupeScaleMethodRows = (rows: ScaleMethodRowLike[] | undefined): ScaleMet
   if (!Array.isArray(rows) || rows.length === 0) return []
   const deduped = new Map<string, ScaleMethodRowLike>()
   for (const row of rows) {
+    if (row?.isGroupRow === true) continue
     const major = toScaleMajorId(row)
     if (major == null) continue
     const proNum = toScaleProNum(row)
@@ -258,6 +265,20 @@ const dedupeScaleMethodRows = (rows: ScaleMethodRowLike[] | undefined): ScaleMet
   return Array.from(deduped.values())
 }
 
+const isScaleLeafRow = (row: { isGroupRow?: unknown; hasCost?: unknown; hasArea?: unknown } | null | undefined) => {
+  if (!row || row.isGroupRow === true) return false
+  if (row.hasCost === true || row.hasArea === true) return true
+  return row.hasCost == null && row.hasArea == null
+}
+
+const isExportableScaleMethodRow = (
+  row: ScaleMethodRowLike | null | undefined,
+  mode: 'cost' | 'area'
+) => {
+  if (!isScaleLeafRow(row)) return false
+  return mode === 'cost' ? row?.hasCost === true : row?.hasArea === true
+}
+
 export const normalizeTaskText = (value: unknown): string => String(value || '').trim()
 
 export const resolveTaskRowServiceId = (row: WorkContentRowLike): number | null =>
@@ -361,11 +382,11 @@ export const buildProjectServiceCoes = (rows: FactorRowLike[] | undefined) => {
   return rows
     .map(row => {
       const serviceid = toSafeInteger(row.id)
-      if (serviceid == null || row.budgetValue == null) return null
-      const coe = toFiniteNumber(row.budgetValue)
+      const coe = toFiniteNumber(row.budgetValue) ?? toFiniteNumber(row.standardFactor)
+      if (serviceid == null || coe == null) return null
       return {
         serviceid,
-        coe: coe ?? 0,
+        coe,
         remark: typeof row.remark === 'string' ? row.remark : ''
       }
     })
@@ -377,11 +398,11 @@ export const buildProjectMajorCoes = (rows: FactorRowLike[] | undefined) => {
   return rows
     .map(row => {
       const majorid = toSafeInteger(row.id)
-      if (majorid == null || row.budgetValue == null) return null
-      const coe = toFiniteNumber(row.budgetValue)
+      const coe = toFiniteNumber(row.budgetValue) ?? toFiniteNumber(row.standardFactor)
+      if (majorid == null || coe == null) return null
       return {
         majorid,
-        coe: coe ?? 0,
+        coe,
         remark: typeof row.remark === 'string' ? row.remark : ''
       }
     })
@@ -391,11 +412,11 @@ export const buildProjectMajorCoes = (rows: FactorRowLike[] | undefined) => {
 export const toExportScaleRows = (rows: ScaleRowLike[] | undefined) => {
   if (!Array.isArray(rows)) return []
   return rows
+    .filter(row => isScaleLeafRow(row))
     .map(row => {
       const majorid = toSafeInteger(row.id)
       if (majorid == null || (row.amount == null && row.landArea == null)) return null
       return {
-        majorid,
         major: majorid,
         cost: row.amount,
         area: row.landArea
@@ -411,6 +432,7 @@ export const buildMethod1 = (rows: ScaleMethodRowLike[] | undefined) => {
   const proSet = new Set<number>()
   const det = normalizedRows
     .map(row => {
+      if (!isExportableScaleMethodRow(row, 'cost')) return null
       const major = toScaleMajorId(row)
       if (major == null) return null
       const proNum = toScaleProNum(row)
@@ -461,6 +483,7 @@ export const buildMethod2 = (rows: ScaleMethodRowLike[] | undefined) => {
   const proSet = new Set<number>()
   const det = normalizedRows
     .map(row => {
+      if (!isExportableScaleMethodRow(row, 'area')) return null
       const major = toScaleMajorId(row)
       if (major == null) return null
       const proNum = toScaleProNum(row)
diff --git a/src/lib/zxFwPricingSync.ts b/src/lib/zxFwPricingSync.ts
index 4a942e2..0ac6638 100644
--- a/src/lib/zxFwPricingSync.ts
+++ b/src/lib/zxFwPricingSync.ts
@@ -1,5 +1,6 @@
 import { roundTo, sumByNumber, toDecimal } from '@/lib/decimal'
 import { ensurePricingMethodDetailRowsForServices } from '@/lib/pricingMethodTotals'
+import { getServiceDictItemById } from '@/sql'
 import {
   isSameNullableNumber,
   isSameScaleDetailRow,
@@ -8,14 +9,14 @@ import {
 import {
   buildContractScaleIdMap,
   buildContractScaleMap,
+  buildContractScaleProjectTotals,
   getContractScaleRowByMajor,
+  getContractScaleProjectTotalsByRow,
   normalizeChangedScaleRowIds,
-  parseScopedRowId,
   resolveScaleRowMajorDictId as resolveRowMajorDictId
 } from '@/lib/pricingScaleLink'
 import { loadConsultCategoryFactorMap, loadMajorFactorMap } from '@/lib/xmFactorDefaults'
 import { useKvStore } from '@/pinia/kv'
-import { getServiceDictItemById } from '@/sql'
 import { useZxFwPricingStore, type ServicePricingMethod, type ZxFwPricingField } from '@/pinia/zxFwPricing'
 
 export type { ZxFwPricingField } from '@/pinia/zxFwPricing'
@@ -23,11 +24,6 @@ export type { ZxFwPricingField } from '@/pinia/zxFwPricing'
 const PRICING_TOTALS_OPTIONS = { excludeInvestmentCostAndAreaRows: true } as const
 const ONLY_COST_SCALE_ROW_ID = '__only-cost-scale-total__'
 
-type ServiceLite = {
-  mutiple?: boolean | null
-  onlyCostScale?: boolean | null
-}
-
 type ScaleDetailRow = {
   id: string
   projectIndex?: number
@@ -51,9 +47,6 @@ type ScaleDetailRow = {
   path?: string[]
 }
 
-const calcOnlyCostScaleAmountFromRows = (rows?: Array<{ amount?: unknown }>) =>
-  sumByNumber(rows || [], row => (typeof row?.amount === 'number' ? row.amount : null))
-
 const getScaleMethodTotalBudgetFee = (rows: ScaleDetailRow[]) => {
   const hasValue = rows.some(row => typeof row.budgetFee === 'number' && Number.isFinite(row.budgetFee))
   if (!hasValue) return null
@@ -70,6 +63,10 @@ type WorkloadDetailRow = {
   serviceFee?: number | null
 }
 
+type ServiceLite = {
+  onlyCostScale?: boolean | null
+}
+
 const normalizeServiceIdSet = (serviceIds?: Array<string | number>) =>
   new Set((serviceIds || []).map(id => String(id || '').trim()).filter(Boolean))
 
@@ -111,12 +108,18 @@ const getWorkloadMethodTotalServiceFee = (rows: WorkloadDetailRow[]) => {
   return roundTo(sumByNumber(rows, row => row.serviceFee ?? null), 2)
 }
 
-const matchesChangedScaleRow = (row: ScaleDetailRow, changedRowIds?: Set<string>) => {
+const isOnlyCostScaleService = (serviceId: string) => {
+  const service = getServiceDictItemById(serviceId) as ServiceLite | undefined
+  return service?.onlyCostScale === true
+}
+
+const matchesChangedScaleRow = (
+  row: ScaleDetailRow,
+  changedRowIds?: Set<string>,
+  options?: { bypassFilter?: boolean }
+) => {
+  if (options?.bypassFilter) return true
   if (!changedRowIds || changedRowIds.size === 0) return true
-  const directRowId = String(row.id || '').trim()
-  if (directRowId && changedRowIds.has(directRowId)) return true
-  const parsedMajorId = parseScopedRowId(row.id).majorDictId
-  if (parsedMajorId && changedRowIds.has(parsedMajorId)) return true
   const majorDictId = resolveRowMajorDictId(row)
   return Boolean(majorDictId && changedRowIds.has(majorDictId))
 }
@@ -127,9 +130,8 @@ const syncScaleMethodRows = async (params: {
   method: ServicePricingMethod
   sourceRowMap: Map<string, ScaleDetailRow>
   sourceRowIdMap: Map<string, ScaleDetailRow>
+  projectTotals: Map<number, { amount: number | null; landArea: number | null }>
   changedRowIds?: Set<string>
-  onlyCostScaleFallbackAmount?: number | null
-  isOnlyCostScaleService?: boolean
 }) => {
   const store = useZxFwPricingStore()
   const methodState = await store.loadServicePricingMethodState<ScaleDetailRow>(
@@ -141,30 +143,25 @@ const syncScaleMethodRows = async (params: {
 
   let changed = false
   let changedRowCount = 0
+  const useSummaryScaleValues =
+    methodState.detailRows.length === 1 ||
+    (params.method === 'investScale' && isOnlyCostScaleService(params.serviceId))
   const nextRows = methodState.detailRows.map(rawRow => {
     const mode = params.method === 'investScale' ? 'cost' : 'area'
-    if (!matchesChangedScaleRow(rawRow, params.changedRowIds)) return rawRow
+    if (!matchesChangedScaleRow(rawRow, params.changedRowIds, { bypassFilter: useSummaryScaleValues })) return rawRow
     const row = { ...rawRow }
     const sourceRow = getContractScaleRowByMajor(row, params.sourceRowMap, params.sourceRowIdMap)
+    const projectTotals = getContractScaleProjectTotalsByRow(row, params.projectTotals)
 
     if (mode === 'cost') {
-      const nextAmount = params.isOnlyCostScaleService
-        ? (
-            typeof sourceRow?.amount === 'number'
-              ? sourceRow.amount
-              : (params.onlyCostScaleFallbackAmount ?? null)
-          )
-        : (
-            typeof sourceRow?.amount === 'number'
-              ? sourceRow.amount
-              : null
-          )
+      const nextAmount = useSummaryScaleValues
+        ? projectTotals.amount
+        : (typeof sourceRow?.amount === 'number' ? sourceRow.amount : null)
       row.amount = isSameNullableNumber(row.amount, nextAmount) ? row.amount : nextAmount
     } else {
-      const nextLandArea =
-        typeof sourceRow?.landArea === 'number'
-          ? sourceRow.landArea
-          : null
+      const nextLandArea = useSummaryScaleValues
+        ? projectTotals.landArea
+        : (typeof sourceRow?.landArea === 'number' ? sourceRow.landArea : null)
       row.landArea = isSameNullableNumber(row.landArea, nextLandArea) ? row.landArea : nextLandArea
     }
 
@@ -236,26 +233,24 @@ export const syncContractScaleToPricing = async (
     options: PRICING_TOTALS_OPTIONS
   })
 
-  const htData = await kvStore.getItem<{ detailRows?: ScaleDetailRow[] }>(`ht-info-v3-${contractId}`)
+  const htData = await kvStore.getItem<{ detailRows?: ScaleDetailRow[]; totalAmount?: number | null }>(`ht-info-v3-${contractId}`)
   const sourceRows = Array.isArray(htData?.detailRows) ? htData.detailRows : []
   const sourceRowMap = buildContractScaleMap(sourceRows)
   const sourceRowIdMap = buildContractScaleIdMap(sourceRows)
-  const onlyCostScaleFallbackAmount = calcOnlyCostScaleAmountFromRows(sourceRows)
+  const projectTotals = buildContractScaleProjectTotals(sourceRows, htData?.totalAmount)
   const updatedServiceIdSet = new Set<string>()
   let updatedMethodCount = 0
   let updatedRowCount = 0
 
   for (const serviceId of selectedIds) {
-    const service = getServiceDictItemById(serviceId) as ServiceLite | undefined
     const investChangedCount = await syncScaleMethodRows({
       contractId,
       serviceId,
       method: 'investScale',
       sourceRowMap,
       sourceRowIdMap,
-      changedRowIds: changedRowIdSet,
-      onlyCostScaleFallbackAmount,
-      isOnlyCostScaleService: service?.onlyCostScale === true
+      projectTotals,
+      changedRowIds: changedRowIdSet
     })
     if (investChangedCount > 0) {
       updatedServiceIdSet.add(serviceId)
@@ -268,6 +263,7 @@ export const syncContractScaleToPricing = async (
       method: 'landScale',
       sourceRowMap,
       sourceRowIdMap,
+      projectTotals,
       changedRowIds: changedRowIdSet
     })
     if (landChangedCount > 0) {